Sire MM V7 fretless 4-string + Nordstrand BJB4 - anyone?

[Sorin Cristea]

Greetings!

The Sire's fretboard radius being 7,25" , I have a noticeable string inbalance (weaker D and A) especially on the bridge PU (the stock one).Unable to correct this,no matter what I tried during the neck/PU/saddles setup.
As I don't mind a hotter bridge PU than the stock one,I might opt for a pair of Nordstrand BJB4 (JB blades - the W&W variety) ....their blades are radiused but I didn't find any reference about the radius' value on these PUs.
Does anyone here use Nordstrand BJB4's on a 7,25" fretless fretboard?If yes,does the BJB4's solve the string (in)balance?

...and question no.2:does anyone know what's the BJB4 W&W's DC resistances?

Thank you!

[ikay]

Spec for the BJB on Nordstrand website says radius is 14"

https://nordstrandaudio.com/collections/4-string-jazz-bass-pickups/products/big-j-blade-4